Questions on Algebra: Radicals -- complicated equations involving roots answered by real tutors!

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Question 430101: how would i begin to solve a problem that is T= 2pie the square root l/g to solve for g.
Click here to see answer by Theo(13342)

Question 430101: how would i begin to solve a problem that is T= 2pie the square root l/g to solve for g.
Click here to see answer by stanbon(75887)

Question 430111: rationalize (28-3(square root 15))/(21+4(square root 15))
Click here to see answer by haileytucki(390)

Question 430184: I have a tough word problem that I just can not seem to get correct. Can someone please help?
Find the length of side a in the right triangle, if b=8 and c=10.

Click here to see answer by algebrahouse.com(1659)

Question 430187: I am in need of some help on a word problem, can anyone help me figure this one out?
A TV set can be 20 inches or maybe even 25 inches, this refers to the diagonal of a screen. A 30 inch TV set has a width of 24 inches. What is it's height?
Click here to see answer by ewatrrr(24785)

Question 430242: What is the graph of y= (sqrt x + 9) + 2
This question has not been submitted and your site is saying it has been.
Click here to see answer by stanbon(75887)

Question 430320: the instructions say to multiply and simplify by factoring.
but i don't know how to do that. can you explain it to me?
sqrt20 * sqrt40
Click here to see answer by jorel1380(3719)

Question 430455: how do i do the square root of 5 over 7? I need to simplify it.
Click here to see answer by robertb(5830)

Question 430465: what is the graph of x = -4(sq rt x)
Click here to see answer by Alan3354(69443)

Question 430707: I know that this one seems simple but for some reason I am having a hard time. Can anyone help me on this one?
sqrt(7a)+8sqrt(63a^(3))=
Click here to see answer by stanbon(75887)

Question 430741: What is the square root of 4 divided by the square root of 49?
Click here to see answer by oberobic(2304)

Question 430742: What is the square root of 34 divided by the square root of 51?
Click here to see answer by richard1234(7193)

Question 430765: I have a problem that I am finding it hard to determine how to write out the answer:
root:3:((27)/(8)) I need to simplify the answer and I came up with
root:3:((3)/(2)) or (3)/(2). Which one is correct? Or, am I wrong on both accounts? Can someone help?
Click here to see answer by mananth(16946)

Question 430468: how do i simplify the problem the square root of 60 times the square root of 105?
Click here to see answer by ankor@dixie-net.com(22740)

Question 430988: h=-16t^2+96t+112
Click here to see answer by ewatrrr(24785)

Question 430929: How do you write a complex number into simple form?
Such as radical -16
Click here to see answer by checkley79(3341)

Question 431151: I am trying to simplify radical expressions.. It says Assume that the variables are positive. Write "nonreal" if the expression does not represent a real number. The problem is sqrt( 98 ). I know the answer is 7 sqrt ( 2 ) but I am not sure how I got that answer. How do I get from sqrt ( 98 ) to 7 sqrt (2) ?
Thanks!
Click here to see answer by richard1234(7193)

Question 431241: how do you work out this kind of problems? Y=16.3with square root of 13 + 23
Click here to see answer by Alan3354(69443)

Question 431547: How do you simplify by rationalizing the dominator for these problems?
1) 5/sqrt7
2) 7/sqrt7 +sqrt3
Click here to see answer by John10(297)

Question 432342: Can you please help me with this math problem? thanks-----> Multiply √5(2√7-2√4)=
Click here to see answer by algebrahouse.com(1659)

Question 432349: Can you please help me with this math problem? thanks-----> Find the following. Assume that x can represent any real number. Use absolute value notation when necessary. √49x^2
Click here to see answer by rapaljer(4671)

Question 432347: Can you please help me with this math problem? thanks-----> Subtract. Simplify by collecting like radical terms if possible 7√75-5√3
Click here to see answer by rapaljer(4671)

Question 432345: Can you please help me with this math problem? thanks-----> (4√6-8√2)(5√6+10√2)
Click here to see answer by robertb(5830)

Question 432378: The standard deviation is the square root of the variance of a set of data. If the variance of a set of data is 24, what is the standard deviation in simplest form?
Click here to see answer by belle3833(46)

Question 432454: please help
have to multiply and simplify, And show all steps
(5-sqrt3)(2+sqrt3)
Click here to see answer by ewatrrr(24785)

Question 432452: please help
need to multiply and simplify. but must show all steps.
sqrt3(3sqrt5+sqrt5a)
thankyou for your help
Click here to see answer by ewatrrr(24785)

Question 432343: Can you please help me with this math problem? thanks-----> Add. Simplify by collecting like radical terms if possible, assuming that all expressions under radicals represent nonnegative numbers.√5a+8√45a^3
Click here to see answer by ankor@dixie-net.com(22740)

Question 432449: the instructions for these problems are Combine the radicals. Plus Show All THE Steps.
1. 3sqrt15+9sqrt15
2. sqrt40-sqrt10
these look like they should be easy, but I am totally confused as what and how to do them.
Click here to see answer by ewatrrr(24785)

Question 432480: Simplify the expressions √25/89 and √48
Click here to see answer by ewatrrr(24785)

Question 432484: Simplify √25/49 and 1/5√28
Click here to see answer by ewatrrr(24785)

Question 432561: What is the sum of the roots of the equation ax^2 + bx + c =0
Click here to see answer by htmentor(1343)

Question 432636: (-7 sqrt 3) (-4 sqrt 10)
multiply and simplify
assume that all variables represent nonnegitive numbers
Click here to see answer by edjones(8007)

Question 432641: Please help me solve this problem:
3/4 = 1 - 3x-2/x+1
Click here to see answer by edjones(8007)

Question 432937: ( - 5 sqrt of 6) (2 sqrt of 3)
multiply and simplify. Assume that all variables represent nonnegative numbers
Click here to see answer by algebrahouse.com(1659)

Question 433037: Solve the equation by completing the square.
9y^2 -12y -2 = 0
Click here to see answer by stanbon(75887)

Question 433053: sqrt of y + 10 = y - 2
solve each radical equation. check your solution
Click here to see answer by ewatrrr(24785)

Question 433038: Solve the equation by completing the square.
y^2 +2y = 0
Click here to see answer by ewatrrr(24785)

Question 433081: ((y^2-4)/(5y))times (-5y)/(y+2)
Click here to see answer by ewatrrr(24785)

Question 433154: ((1/2x) + 1/2) = (4/(x + 3))
Click here to see answer by stanbon(75887)

Question 433191: ((5/2x)-(4/x)=-3)
Click here to see answer by jorel1380(3719)

Question 433373: What is the asymptote and graph of:
y= (1/(x+2)) + 3
Click here to see answer by belle3833(46)

Question 433382: ((2-x)/(7x)) times (14/(x-2))=
Click here to see answer by stanbon(75887)

Question 433390: (x^4-25) divided by (x-5)
Click here to see answer by stanbon(75887)

Question 433419: what is the square root of 36a+4b?
Click here to see answer by stanbon(75887)

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